///////////////////////////////////////////////////////////
//  ObjectCustomField.cs
//  Implementation of Class ObjectCustomField
//  CSLA type: Editable Child 
//  Created on: 12-"Rocktober"-2004 
//  Object design: John
//	Coded: John 12-"Rocktober"-2004 
///////////////////////////////////////////////////////////

using System;
using System.Data;
using CSLA.Data;
using GZTW.Data;
using CSLA;
using System.Threading;
using CSLA.Security;


namespace GZTW.AyaNova.BLL 
{
	/// <summary>
	/// Used by interface to determine how to display and accept values entered in custom fields
	///
	/// </summary>
	[Serializable]
	public class ObjectCustomField : BusinessBase 
	{


		#region Attributes 
		
		private SmartDate mCreated;
		private SmartDate mModified;
		private Guid mCreator;
		private Guid mModifier;	

		private string mObjectName="";
		private string mFieldName="";
		//private string mDisplayName="";
		private bool mVisible=false;
		private FormFieldDataTypes mFieldType=FormFieldDataTypes.Text;
		
		//FUTURE: Left this out now because it would raise questions
		//about why other built-in fields can't be made required,
		//perhaps that's coming in future

		//if true can't be left empty
		//private bool mRequired=false;

		#endregion

		#region Constructor	

		/// <summary>
		/// Private constructor to prevent direct instantiation
		/// </summary>
		private ObjectCustomField()
		{	
			//Set as child object
			MarkAsChild();
			//Set record history to defaults
            mCreated = new SmartDate(DBUtil.CurrentWorkingDateTime);
			mModified=new SmartDate();
			mCreator=Guid.Empty;
			mModifier=Guid.Empty;

		
		}
		#endregion

		#region Business properties
		/// <summary>
		/// Get created date
		///
		/// 
		/// </summary>
		public string Created 
		{
			get
			{
				return mCreated.ToString();
			}
		}

		/// <summary>
		/// Get modified date
		///
		/// 
		/// </summary>
		public string Modified 
		{
			get
			{
				return mModified.ToString();
			}
		}

		/// <summary>
		/// Get user record ID of person who created this record
		///
		/// 
		/// </summary>
		public Guid Creator 
		{
			get
			{
				return mCreator;
			}
		}

		/// <summary>
		/// Get user ID of person who modified this record
		///
		/// 
		/// </summary>
		public Guid Modifier 
		{
			get
			{
				return mModifier;
			}
		}
		
		
		
		
		/// <summary>
		/// ObjectName
		/// </summary>
		public string ObjectName
		{
			get
			{
				return mObjectName;
			}
			set
			{
				if(mObjectName!=value)
				{
					mObjectName=value;
					MarkDirty();
				}
			}
		}


		/// <summary>
		/// FieldName
		/// </summary>
		public string FieldName
		{
			get
			{
				return mFieldName;
			}
			set
			{
				if(mFieldName!=value)
				{
					mFieldName=value;
					MarkDirty();
				}
			}
		}

//		/// <summary>
//		/// DisplayName
//		/// </summary>
//		public string DisplayName
//		{
//			get
//			{
//				return mDisplayName;
//			}
//			set
//			{
//				if(mDisplayName!=value)
//				{
//					mDisplayName=value;
//					MarkDirty();
//				}
//			}
//		}

		/// <summary>
		/// Visible
		/// </summary>
		public bool Visible
		{
			get
			{
				return mVisible;
			}
			set
			{
				if(mVisible!=value)
				{
					mVisible=value;
					MarkDirty();
				}
			}
		}

		/// <summary>
		/// FieldType
		/// </summary>
		public FormFieldDataTypes FieldType
		{
			get
			{
				return mFieldType;
			}
			set
			{
				if(mFieldType!=value)
				{
					mFieldType=value;
					MarkDirty();
				}
			}
		}

		
		#endregion

		#region System.Object overrides
        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
		public override string ToString()
		{
			return "ObjectCustomField"+ mObjectName + mFieldName ;
		}

		/// <summary>
		/// 
		/// </summary>
		/// <param name="obj"></param>
		/// <returns></returns>
		public override bool Equals(Object obj)
		{
			if ( obj == null || GetType ( ) != obj.GetType ( ) ) return false;
			ObjectCustomField c=(ObjectCustomField)obj;
			return ((mObjectName==c.mObjectName) && (mFieldName==c.mFieldName));
		}
        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
		public override int GetHashCode()
		{
			return ("ObjectCustomField" + mObjectName + mFieldName).GetHashCode();
		}
		#endregion

		#region Static methods
		/// <summary>
		/// Get new object
		/// </summary>
		/// <returns></returns>
		internal static ObjectCustomField NewItem(string sObjectName, string sFieldName)
		{
			ObjectCustomField child=new ObjectCustomField();
			child.mObjectName=sObjectName;
			child.mFieldName=sFieldName;
			//child.mDisplayName=sFieldName;
			return child;
			
		}

		/// <summary>
		/// GetItem
		/// </summary>
		/// <param name="dr"></param>
		/// <returns></returns>
		internal static ObjectCustomField GetItem(SafeDataReader dr)
		{
				
			ObjectCustomField child = new ObjectCustomField();
			child.Fetch(dr);
			return child;			
				
		}

		
		#endregion

		#region DAL DATA ACCESS
		/// <summary>
		/// Fetch
		/// </summary>
		/// <param name="dr"></param>
		private void Fetch(SafeDataReader dr)
		{					
					
			//ObjectCustomField fields
			//Standard fields
			
			mCreated=DBUtil.ToLocal(dr.GetSmartDate("aCreated"));
			mModified=DBUtil.ToLocal(dr.GetSmartDate("aModified"));
			mCreator=dr.GetGuid("aCreator");
			mModifier=dr.GetGuid("aModifier");
			mObjectName=dr.GetString("aObjectName");
			mFieldName=dr.GetString("aFieldName");
			//mDisplayName=dr.GetString("aDisplayName");
			mVisible=dr.GetBoolean("aVisible");
			mFieldType=(FormFieldDataTypes)dr.GetInt16("aFieldType");

			MarkOld();		

		}

		/// <summary>
		/// Update
		/// </summary>
		/// <param name="tr"></param>
		internal void Update(IDbTransaction tr)
		{
			//No need to update if there is nothing changed
			if(!this.IsDirty) return;


			//DELIBERATELY SKIPPING CONCURRENCY CHECK
			//PROBABLY NOT NEEDED AND DIDN"T WANT TO WRITE A CUSTOM ONE
			//DUE TO LACK OF GUID ID FIELD (IN FUTURE MUST...MUST...MUST ENSURE EVERY oBJECT HAS A CUSTOM ID FIELD


			// If not a new record, check if record was modified 
			//by another user since original retrieval:
//			if(!IsNew)
//				DBUtil.CheckSafeToUpdate(this.mModified.Date,this.mID,"ClientNote");

			#region Delete
			if(IsDeleted)
			{
				if(!IsNew)
				{
					//Delete object and child objects
					DBCommandWrapper cmDelete = DBUtil.GetCommandFromSQL(
						"DELETE FROM aObjectCustomField WHERE aObjectName=@ObjectName " +
						"AND aFieldName=@FieldName");
					cmDelete.AddInParameter("@ObjectName",DbType.String,mObjectName);
					cmDelete.AddInParameter("@FieldName",DbType.String,mFieldName);
					DBUtil.DB.ExecuteNonQuery(cmDelete, tr);
					//-----------------------------
				}
				MarkNew();
				return;
			}

			#endregion


			#region Add / Update
			
			//get modification time temporarily, if update succeeds then
			//set to this time
			System.DateTime dtModified = DBUtil.CurrentWorkingDateTime;

			DBCommandWrapper cm = null;
			if(IsNew)//Add or update?
				cm=DBUtil.GetCommandFromSQL(
					"INSERT INTO aObjectCustomField (aObjectname, aFieldName, " +
					"aVisible, aFieldType, aCreated,aModified, aCreator,aModifier) " +
					"VALUES (@ObjectName,@FieldName,@Visible,@FieldType, " +
					"@Created,@Modified, @CurrentUserID,@CurrentUserID)"
					);
			else
				cm=DBUtil.GetCommandFromSQL(
					"UPDATE aObjectCustomField SET aObjectName=@ObjectName, " +
					"aFieldName=@FieldName, aVisible=@Visible, aFieldType=@FieldType, " +
					"aModifier=@CurrentUserID, aModified=@Modified " +
					"WHERE aObjectName=@ObjectName AND " +
					"aFieldName=@FieldName"
					);

			//ObjectCustomFields fields
			cm.AddInParameter("@ObjectName",DbType.String,mObjectName);
			cm.AddInParameter("@FieldName",DbType.String,mFieldName);
			cm.AddInParameter("@Visible",DbType.Boolean,mVisible);
			cm.AddInParameter("@FieldType",DbType.Int16,(int)mFieldType);			

			//Standard fields
			cm.AddInParameter("@CurrentUserID",DbType.Guid, CurrentUserID);
			cm.AddInParameter("@Created",DbType.DateTime, DBUtil.ToUTC(mCreated.Date));
			cm.AddInParameter("@Modified",DbType.DateTime, DBUtil.ToUTC(dtModified));				
					
			DBUtil.DB.ExecuteNonQuery(cm, tr);
	

			MarkOld();//db is now synched with object
			//Successful update so 
			//change modification time to match
			this.mModified.Date=dtModified;	
			#endregion						
			
			
			
		}

		
		
		#endregion	

	
		
		
	}//end ObjectCustomField

}//end namespace GZTW.AyaNova.BLL